Numerical Experiments of the Tsunami Associated with the Collapse of Mt. Mayuyama in 1792

Numerical computations of 1303 tsunamigenic propagation towards Alexandria, Egyptian Coast

“…Most of them aimed to simulate historical tsunamis, for which data such as run-up heights, inundated areas and fault models are of poor reliability. Aida (1975Aida ( , 1984 made such modeled the 1792 Unzen and the 1741 Oshima tsunamis and compared the run-up height distributions with those estimated from old documents. Abe et al (1990) carried out field investigations of the height of the Sanriku earthquake tsunami (A.D.869), on the basis of archaeological findings and sedimentological examination.…”

Numerical simulation of the landslide-induced tsunami of 1988 on Vulcano Island, Italy

“…The resistance term R ik is due to the interaction of the sliding mass with the ambient fluid and can be considered as the sum of two contributions (Raney and Butler;1975;McEwen and Malin 1989;Tinti et al 1997), related to the turbulent stresses acting on the upper, and on the frontal, block surfaces:…”

“…Hence, the specific way the landslide excites water waves is not taken into account but is incorporated in the model by means of supposedly equivalent initial conditions (prescribed water elevation field) or of ad-hoc boundary conditions (prescribed inflow velocity field on the coastal segment where the slide enters the sea) that are artificial and not easy to justify (Aida 1975;Kienle et al 1987;Nishimura and Satake 1993;Synolakis et al 1997). For fully submarine events, more complicated approaches consider the landslide as a rigid undeformable body moving on the sea bottom according to prescribed kinematics (e.g.…”

Volcanism-Induced Tsunamis and Tsunamiites

“…Mayuyama has been estimated to be about 0.48 km 3 (Ui, 1983). Aida (1975) carried out numerical computations of tsunamis assuming continuous water transport perpendicular to the shore as the tsunami source. He concluded that the observed tsunami behaviour could be explained by the transport of 18,000 m 3 /min for 2-4 min at the landslide area.…”